/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     4.1
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
	This file is part of foam-extend.

	foam-extend is free software: you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by the
	Free Software Foundation, either version 3 of the License, or (at your
	option) any later version.

	foam-extend is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.

\*---------------------------------------------------------------------------*/

#include "interpolatePointToCell.H"

// * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //

template<class Type>
Type Foam::interpolatePointToCell
(
	const GeometricField<Type, pointPatchField, pointMesh>& ptf,
	const label celli
)
{
	const primitiveMesh& mesh = ptf.mesh()();

	const cell& cFaces = mesh.cells()[celli];

	labelHashSet pointHad(10*cFaces.size());

	Type sum(pTraits<Type>::zero);

	forAll(cFaces, i)
	{
		const face& f = mesh.faces()[cFaces[i]];

		forAll(f, fp)
		{
			label v = f[fp];

			if (pointHad.insert(v))
			{
				sum += ptf[v];
			}
		}
	}

	return sum/pointHad.size();
}


// ************************************************************************* //
